Carbureter.



J. B. KNICKERBOCKER.

GARBURETER.

APPLICATION FILED NOV. 21, 1907. 924,673. Patented June 15, 1909.

Fig 1 F1 3 2.

WITNESSES:

I N V E N TOR.

30 James B.K11ickar1aocker.

A TTORNE Y.

JAMES B. KNICKERBOOKER, OF INDIANAPOLIS, INDIANA.

"CARBURETER.

Specification of Letters Patent.

Patented 'June s, 1909.

Application filed November 21, 1907. Serial Io. 403,1.1'

To all whom it may concern:

Be it known that 1', JAMES B. Kuroxnn- BooKER, of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Carbureter; andI do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

T he object of this invention is to provide an improved construction of carbureters for explosive engines so as to cause a better admixture of the fuel and air in forming the explosive gas.

To the'foregoing end one feature of the in vention consists in providing an annular fuel nozzle through which the fuel enters the mixing chamber, so that there will issue therefrom an annular sheet of fuel, such as gasolene, alcohol, kerosene or the like. An air passage-way is provided within and through the fuel nozzle, so that there will be a-column of air passing therethrough, not only for the purpose of mixing with the fuel but also for the purpose of ejecting or drawing out the fuel through the nozzle. This is the general function of the interior column of air and to assist in ejecting the fuel, the nozzle is formed of an inner and outer tube between which't-he column of fuel passes, the outlet of the inner tube being somewhat below the outlet of the outer tube, whereby the interior column of fair 1willhave a greater suction effect upon the The fullnature of my invention will be understood from the accompanying drawings and the following description and claims.

In the drawings Figure 1 is a central vertical section through the device with the throttle valve closed and parts in their inoperative position. Fig. 2 is the same with the throttle valve considerably opened. Fig. 3 is a horizontal section on the line 3-3 of Fig. 1. Fig. 4 is a horizontal section on the line 4-4 Fig. 1. tion through the device on a plane ata right angle to that shown in Fig. 2, the lower part and other arts being broken away.

In detail there is an outer casing 10 and an inner casing 11 providing an annular bowl or rece tacle 12 for the gas'olenc or fuel. This bow is usually called the float chamber, as it carries an annular float 13 which, through the lever 14 controls the fuel valve 15 that regulates the fuel inlet port 16. From the float chamber or bowl 12 thefuel passes internally for receivingthe rod 38 which we Fig. 5 is a central vertical sec through the port 20 that is controlled by the needle valve 21 into the vertical annular fuel, port 22. This fuel port is formed. by a'. noz-" zle consisting of two tubular like walls one within the other and secured thereto at the lower end and somewhat contracted at their upper ends and so formed as to also contract the dimensions of the annular fuel port at the upper end. The outlet end of the inner tube is below the outlet end of the outer tube so the column of air passing up through the nozzle will draw the fuel through and eject it from the nozzle. I

The mixing chamber 25 lies above the fuel nozzle, an air chamber i i-surrounds the fuel nozzle, and'a artition 45 with perforations 47 separates chamber 44 from the air chamber 46 below. At the extreme lower end there is an extension 32 of the casing having on it a' ring 33 at the bottom. In said ex tension 32 there is a sleeve-like compensating' valve 31 with holes near its upper end that are uncovered for the admission of air into chamber 46 when the valve is elevated.

fore closed by the s ring pressing down. upon it.- The top 0 the valve 31 has a cen tral opening through'which aconical thimblee like air inlet tube 34 projects u wardly, it being located on the upper end 0 a. skeleton frame 35 which bears against the under side of the top of the valve 31 and has a downward projection 37 threaded at its lower end tends through said extension 37, air inlet tube 34, and the fuel inlet tube and is pivot-v ally connected with the throttle valve 39 ata mint to one side of the pivotal center of. said throttle valve, 1 whereby when said throttle valve is tilted or opened, said rod 38 will elevate the air inlet tube 34 and the compensating air valve 31. There is a nut 40 on the lower end of the rod 38 and the throttle valve 39 is mounted on the rotarj valvest'em" 41, to which the throttle lever 42 is secured. When the throttle lever is not actuated very much, the central air inlet tube 34 is somewhat removed from the bottom of thefuel nozzle so that a portion of theair passing through said air inlet tube 34 will pass outcentrally through the nozzle and another portion will pass laterally through the s )ring 30, the inner chamber 46' and through the )erforations in the plate into the chamber 44 surrounding the nozzle. l/Vhen, however, more gas isdesired, the throttleleveril a I Said valve is normally depressed and there-T i-:-

through the ports 36 to the outside air cham,

ber 44 surrounding the nozzle. And all of the air that passes through the air inlet tube 34 then goes-through the fuel nozzle and considerably increases the suction, whereby a greater amount of fuelv is drawn through the nozzle into the mixing chamber 25 It is obvious from the foregoing descrip lion. and the drawings that the device is easily controlled.- It is easy to start and very sensitive in operation and successfully withstands hardships without materially affecting the operation of the device and is therefore particularly suited foruse in automobiles. v

What I claim as my invention and desire to secure b Letters Patent is:

1; A car ureter including means for supplying to the mixing chamber an annular column of fuel, means for supplying the interior of said column with air, means for supplying an annular column of air surrounding the cylindrical column of fuel, a throttle valve, and means controlled by the movements of the throttle valve for regulating the supply of air.

2. A carbureter including an annular fuel nozzle with a central air passage therethrough for ejecting fuel through said nozzle, means for providing an air chamber around said nozzle, and means below the nozzle for controlling the relative volumes of air that pass through the interior of the fuel nozzle and about-the exterior thereof.

3. A earbureter including an annular float chamber, an air chamber surrounded by said float chamber and having a perforated bottom, an annular fuel nozzle extending up through said airchamber, means for admitting airto the interior of said fuel nozzle, a throttle valve, and means controlled by the throttle valve for regulating the supply of air to the-said air cham er.

4. A'carbureter including an annular fuel nozzle with. a central air passage there through for ejecting fuel through said nozzle,

. an air inlet tube below said fuel nozzle and in line with the passageway through the fuel nozzle, a compensating :valve for admitting air to the outside of the fuel nozzle that is normally closed, a throttle valve, and means controlled by the throttle valve for simul-. taneously moving said air inlet tube toward the fuel nozzle and opening said compensating air valve.-

5. A carbureter including an annular float chamber, an air chamber surrounded by said float chamber and having a perforated bottom, .an annular fuel nozzle extending up through saidair chamber, means for admitting air. to the interior of said fuel nozzle, a

throttle valve, a cylindrical lower end of the casing below said perforated bottom to the outer air chamber, a verticall 1 movable sleeve-like compensating air valve in said cylindrical projection of the casing with ports in the sides thereof near its. upper end, a spring tending-to force said air valve down ward, and a connection between the throttle valve and said air valve, whereby when saidthrottle valve is open the air valve will be elevated and the air ports therein uncovered.-

6. A carbureter including an annular float chamber, an air chamber surrounded by said float chamber and having a perforated bottom, an annular fuel nozzle extending up through said air chamber, means for admitting air to the interior of said fuel nozzle, a

throttle valve, aeylindrical lower end of the casing below said perforate-d bottom to the outer air chamber, a vertically movable sleeve-like compensating air valve insaid cylindrical projection of the casing with ports in the sides thereof near its upper end, a spring tending to force said air valve downward, a connection between the throttle valve and said air valve, whereby when said throttle valve is openv the air valve will be elevated and the air ports therein uncovered, and a tubular air inlet mounted onsaid compensating airvalve sothat when said air valve is actuated said air inlet tube will move toward and in alinement wit-l the fuel nozzle.

In witness whereof, l. haveliereunto, all i ed my signature in the presence of the witnesses herein named. I I

JAMES B. KNICKE R PK )CKE ll.

Wit nessesi N ALLEnoNc, ()Livn BREEDEN. 

